On Tue, 3 Sep 2019 15:06:20 -0500, "Byker" wrote:

"joet5" wrote in message
.. .

WTF? Twin tailed?

Seems Lockheed wanted to sell T-33s to the US Navy, but deck trials
showed some landing stability issues. This T-bird was modified to see
if it would help - which it did - but Lockheed went ahead and tweaked
the whole design into the T2V Sea Star with a larger fin and raised
cockpit.

This twin-tail was restored to original configuration and returned to
service.

I kinda like Miloch's hypothesis, though...